Air filter for a motorcycle



FIG. 1 is a perspective view of the top front and left side of the air filter for a motorcycle;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is an enlarged fragmentary view of a portion of the grille on the left side of the air filter for a motorcycle as indicated by the bracket 6 in FIG. 3, the grille on the back of the air filter for a motorcycle shown in FIG. 3 being of the same construction. 

The ornamental design for an air filter for a motorcycle, substantially as shown and described. 